Welcome to ReefCentral.
Because of the sheer size of our forum, we've been forced to limit selling and trading to members who've met a couple of criteria. (If you're seeing this message, you haven't met them yet.) Please take a moment to acquaint yourself with our selling/trading rules to help make your stay a long and rewarding one.
Selling and trading on ReefCentral.

I haven't seen any reason to believe that adding vitamins is useful. Some of the fatty acid supplements, like Selco, might be useful in some cases. Some animals will synthesize them, though, and a refugium could encourage that.

Good news as far as I'm concerned. The less you have to add and monitor the better.

You can't mess up what isn't added in the first place.

--------------------------

The only reason I asked the question in the first place was because of the number of additives available from reputable companies and thought - somebody must be using these for good and reasons or they wouldn't be selling them. I was also once told that artifical seawater is sterile and lacked any of the vitamins found naturally in the water column around reefs. I was told not only did the fish get nutrition from eating food but from drinking the water as well....